'use strict';

const fs = require('fs');
const path = require('path');
const webpack = require('webpack');
const resolve = require('resolve');
const PnpWebpackPlugin = require('pnp-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const InlineChunkHtmlPlugin = require('react-dev-utils/InlineChunkHtmlPlugin');
const TerserPlugin = require('terser-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const safePostCssParser = require('postcss-safe-parser');
const ManifestPlugin = require('webpack-manifest-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const WorkboxWebpackPlugin = require('workbox-webpack-plugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const getCSSModuleLocalIdent = require('react-dev-utils/getCSSModuleLocalIdent');
const ESLintPlugin = require('eslint-webpack-plugin');
const paths = require('./paths');
const modules = require('./modules');
const getClientEnvironment = require('./env');
const ModuleNotFoundPlugin = require('react-dev-utils/ModuleNotFoundPlugin');
const ForkTsCheckerWebpackPlugin = require('react-dev-utils/ForkTsCheckerWebpackPlugin');
const typescriptFormatter = require('react-dev-utils/typescriptFormatter');
const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');

const postcssNormalize = require('postcss-normalize');

const appPackageJson = require(paths.appPackageJson);

// Source maps are resource heavy and can cause out of memory issue for large source files.
const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';

const webpackDevClientEntry = require.resolve(
    'react-dev-utils/webpackHotDevClient'
);
const reactRefreshOverlayEntry = require.resolve(
    'react-dev-utils/refreshOverlayInterop'
);

// Some apps do not need the benefits of saving a web request, so not inlining the chunk
// makes for a smoother build process.
const shouldInlineRuntimeChunk = process.env.INLINE_RUNTIME_CHUNK !== 'false';

const emitErrorsAsWarnings = process.env.ESLINT_NO_DEV_ERRORS === 'true';
const disableESLintPlugin = process.env.DISABLE_ESLINT_PLUGIN === 'true';

const imageInlineSizeLimit = parseInt(
    process.env.IMAGE_INLINE_SIZE_LIMIT || '10000'
);

// Check if TypeScript is setup
const useTypeScript = fs.existsSync(paths.appTsConfig);

// Get the path to the uncompiled service worker (if it exists).
const swSrc = paths.swSrc;

// style files regexes
const cssRegex = /\.(css|less)$/;
const cssModuleRegex = /\.module\.css$/;
const sassRegex = /\.(scss|sass)$/;
const sassModuleRegex = /\.module\.(scss|sass)$/;

const hasJsxRuntime = (() => {
    if (process.env.DISABLE_NEW_JSX_TRANSFORM === 'true') {
        return false;
    }

    try {
        require.resolve('react/jsx-runtime');
        return true;
    } catch ( e ) {
        return false;
    }
})();

// This is the production and development configuration.
// It is focused on developer experience, fast rebuilds, and a minimal bundle.
module.exports = function(webpackEnv) {
const isEnvDevelopment = webpackEnv === 'development';
const isEnvProduction = webpackEnv === 'production';

// Variable used for enabling profiling in Production
// passed into alias object. Uses a flag if passed into the build command
const isEnvProductionProfile = isEnvProduction && process.argv.includes('--profile');

// We will provide `paths.publicUrlOrPath` to our app
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
// Get environment variables to inject into our app.
const env = getClientEnvironment(paths.publicUrlOrPath.slice(0, -1));

const shouldUseReactRefresh = env.raw.FAST_REFRESH;

// common function to get style loaders
const getStyleLoaders = (cssOptions, preProcessor) => {
    const loaders = [
        isEnvDevelopment && require.resolve('style-loader'),
        isEnvProduction && {
            loader: MiniCssExtractPlugin.loader,
            // css is located in `static/css`, use '../../' to locate index.html folder
            // in production `paths.publicUrlOrPath` can be a relative path
            options: paths.publicUrlOrPath.startsWith('.')
                ? {
                    publicPath: '../../'
                }
                : {},
        },
        {
            loader: require.resolve('css-loader'),
            options: cssOptions,
        },
        {
            // Options for PostCSS as we reference these options twice
            // Adds vendor prefixing based on your specified browser support in
            // package.json
            loader: require.resolve('postcss-loader'),
            options: {
                // Necessary for external CSS imports to work
                // https://github.com/facebook/create-react-app/issues/2677
                ident: 'postcss',
                plugins: () => [
                    require('postcss-flexbugs-fixes'),
                    require('postcss-preset-env')({
                        autoprefixer: {
                            flexbox: 'no-2009',
                        },
                        stage: 3,
                    }),
                    // Adds PostCSS Normalize as the reset css with default options,
                    // so that it honors browserslist config in package.json
                    // which in turn let's users customize the target behavior as per their needs.
                    postcssNormalize(),
                ],
                sourceMap: isEnvProduction ? shouldUseSourceMap : isEnvDevelopment,
            },
        },
        {
            loader: require.resolve('less-loader'),
            options: cssOptions,
        }
    ].filter(Boolean);
    if (preProcessor) {
        loaders.push(
            {
                loader: require.resolve('resolve-url-loader'),
                options: {
                    sourceMap: isEnvProduction ? shouldUseSourceMap : isEnvDevelopment,
                    root: paths.appSrc,
                },
            },
            {
                loader: require.resolve(preProcessor),
                options: {
                    sourceMap: true,
                },
            }
        );
    }
    return loaders;
};

return {
    mode: isEnvProduction ? 'production' : isEnvDevelopment && 'development',
    // Stop compilation early in production
    bail: isEnvProduction,
    devtool: isEnvProduction
        ? shouldUseSourceMap
            ? 'source-map'
            : false
        : isEnvDevelopment && 'cheap-module-source-map',
    // These are the "entry points" to our application.
    // This means they will be the "root" imports that are included in JS bundle.
    entry: isEnvDevelopment && !shouldUseReactRefresh
        ? [
            // Include an alternative client for WebpackDevServer. A client's job is to
            // connect to WebpackDevServer by a socket and get notified about changes.
            // When you save a file, the client will either apply hot updates (in case
            // of CSS changes), or refresh the page (in case of JS changes). When you
            // make a syntax error, this client will display a syntax error overlay.
            // Note: instead of the default WebpackDevServer client, we use a custom one
            // to bring better experience for Create React App users. You can replace
            // the line below with these two lines if you prefer the stock client:
            //
            // require.resolve('webpack-dev-server/client') + '?/',
            // require.resolve('webpack/hot/dev-server'),
            //
            // When using the experimental react-refresh integration,
            // the webpack plugin takes care of injecting the dev client for us.
            webpackDevClientEntry,
            // Finally, this is your app's code:
            paths.appIndexJs,
        // We include the app code last so that if there is a runtime error during
        // initialization, it doesn't blow up the WebpackDevServer client, and
        // changing JS code would still trigger a refresh.
        ]
        : paths.appIndexJs,
    output: {
        // The build folder.
        path: isEnvProduction ? paths.appBuild : undefined,
        // Add /* filename */ comments to generated require()s in the output.
        pathinfo: isEnvDevelopment,
        // There will be one main bundle, and one file per asynchronous chunk.
        // In development, it does not produce real files.
        filename: isEnvProduction
            ? 'static/js/[name].[contenthash:8].js'
            : isEnvDevelopment && 'static/js/bundle.js',
        // TODO: remove this when upgrading to webpack 5
        futureEmitAssets: true,
        // There are also additional JS chunk files if you use code splitting.
        chunkFilename: isEnvProduction
            ? 'static/js/[name].[contenthash:8].chunk.js'
            : isEnvDevelopment && 'static/js/[name].chunk.js',
        // webpack uses `publicPath` to determine where the app is being served from.
        // It requires a trailing slash, or the file assets will get an incorrect path.
        // We inferred the "public path" (such as / or /my-project) from homepage.
        publicPath: paths.publicUrlOrPath,
        // Point sourcemap entries to original disk location (format as URL on Windows)
        devtoolModuleFilenameTemplate: isEnvProduction
            ? info => path
                .relative(paths.appSrc, info.absoluteResourcePath)
                .replace(/\\/g, '/')
            : isEnvDevelopment &&
            (info => path.resolve(info.absoluteResourcePath).replace(/\\/g, '/')),
        // Prevents conflicts when multiple webpack runtimes (from different apps)
        // are used on the same page.
        jsonpFunction: `webpackJsonp${appPackageJson.name}`,
        // this defaults to 'window', but by setting it to 'this' then
        // module chunks which are built will work in web workers as well.
        globalObject: 'this',
    },
    optimization: {
        minimize: isEnvProduction,
        minimizer: [
            // This is only used in production mode
            new TerserPlugin({
                terserOptions: {
                    parse: {
                        // We want terser to parse ecma 8 code. However, we don't want it
                        // to apply any minification steps that turns valid ecma 5 code
                        // into invalid ecma 5 code. This is why the 'compress' and 'output'
                        // sections only apply transformations that are ecma 5 safe
                        // https://github.com/facebook/create-react-app/pull/4234
                        ecma: 8,
                    },
                    compress: {
                        ecma: 5,
                        warnings: false,
                        // Disabled because of an issue with Uglify breaking seemingly valid code:
                        // https://github.com/facebook/create-react-app/issues/2376
                        // Pending further investigation:
                        // https://github.com/mishoo/UglifyJS2/issues/2011
                        comparisons: false,
                        // Disabled because of an issue with Terser breaking valid code:
                        // https://github.com/facebook/create-react-app/issues/5250
                        // Pending further investigation:
                        // https://github.com/terser-js/terser/issues/120
                        inline: 2,
                    },
                    mangle: {
                        safari10: true,
                    },
                    // Added for profiling in devtools
                    keep_classnames: isEnvProductionProfile,
                    keep_fnames: isEnvProductionProfile,
                    output: {
                        ecma: 5,
                        comments: false,
                        // Turned on because emoji and regex is not minified properly using default
                        // https://github.com/facebook/create-react-app/issues/2488
                        ascii_only: true,
                    },
                },
                sourceMap: shouldUseSourceMap,
            }),
            // This is only used in production mode
            new OptimizeCSSAssetsPlugin({
                cssProcessorOptions: {
                    parser: safePostCssParser,
                    map: shouldUseSourceMap
                        ? {
                            // `inline: false` forces the sourcemap to be output into a
                            // separate file
                            inline: false,
                            // `annotation: true` appends the sourceMappingURL to the end of
                            // the css file, helping the browser find the sourcemap
                            annotation: true,
                        }
                        : false,
                },
                cssProcessorPluginOptions: {
                    preset: ['default', {
                        minifyFontValues: {
                            removeQuotes: false
                        }
                    }],
                },
            }),
        ],
        // Automatically split vendor and commons
        // https://twitter.com/wSokra/status/969633336732905474
        // https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
        splitChunks: {
            chunks: 'all',
            name: isEnvDevelopment,
        },
        // Keep the runtime chunk separated to enable long term caching
        // https://twitter.com/wSokra/status/969679223278505985
        // https://github.com/facebook/create-react-app/issues/5358
        runtimeChunk: {
            name: entrypoint => `runtime-${entrypoint.name}`,
        },
    },
    resolve: {
        // This allows you to set a fallback for where webpack should look for modules.
        // We placed these paths second because we want `node_modules` to "win"
        // if there are any conflicts. This matches Node resolution mechanism.
        // https://github.com/facebook/create-react-app/issues/253
        modules: ['node_modules', paths.appNodeModules].concat(
            modules.additionalModulePaths || []
        ),
        // These are the reasonable defaults supported by the Node ecosystem.
        // We also include JSX as a common component filename extension to support
        // some tools, although we do not recommend using it, see:
        // https://github.com/facebook/create-react-app/issues/290
        // `web` extension prefixes have been added for better support
        // for React Native Web.
        extensions: paths.moduleFileExtensions
            .map(ext => `.${ext}`)
            .filter(ext => useTypeScript || !ext.includes('ts')),
        alias: {
            // Support React Native Web
            // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
            'react-native': 'react-native-web',
            // Allows for better profiling with ReactDevTools
            ...(isEnvProductionProfile && {
                        'react-dom$': 'react-dom/profiling',
                        'scheduler/tracing': 'scheduler/tracing-profiling',
            }),
            ...(modules.webpackAliases || {}),
        },
        plugins: [
            // Adds support for installing with Plug'n'Play, leading to faster installs and adding
            // guards against forgotten dependencies and such.
            PnpWebpackPlugin,
            // Prevents users from importing files from outside of src/ (or node_modules/).
            // This often causes confusion because we only process files within src/ with babel.
            // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
            // please link the files into your node_modules/ and let module-resolution kick in.
            // Make sure your source files are compiled, as they will not be processed in any way.
            new ModuleScopePlugin(paths.appSrc, [
                paths.appPackageJson,
                reactRefreshOverlayEntry,
            ]),
        ],
    },
    resolveLoader: {
        plugins: [
            // Also related to Plug'n'Play, but this time it tells webpack to load its loaders
            // from the current package.
            PnpWebpackPlugin.moduleLoader(module),
        ],
    },
    module: {
        strictExportPresence: true,
        rules: [
            // Disable require.ensure as it's not a standard language feature.
            {
                parser: {
                    requireEnsure: false
                }
            },
            {
                // "oneOf" will traverse all following loaders until one will
                // match the requirements. When no loader matches it will fall
                // back to the "file" loader at the end of the loader list.
                oneOf: [
                    // TODO: Merge this config once `image/avif` is in the mime-db
                    // https://github.com/jshttp/mime-db
                    {
                        test: [/\.avif$/],
                        loader: require.resolve('url-loader'),
                        options: {
                            limit: imageInlineSizeLimit,
                            mimetype: 'image/avif',
                            name: 'static/media/[name].[hash:8].[ext]',
                        },
                    },
                    // "url" loader works like "file" loader except that it embeds assets
                    // smaller than specified limit in bytes as data URLs to avoid requests.
                    // A missing `test` is equivalent to a match.
                    {
                        test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
                        loader: require.resolve('url-loader'),
                        options: {
                            limit: imageInlineSizeLimit,
                            name: 'static/media/[name].[hash:8].[ext]',
                        },
                    },
                    // Process application JS with Babel.
                    // The preset includes JSX, Flow, TypeScript, and some ESnext features.
                    {
                        test: /\.(js|mjs|jsx|ts|tsx)$/,
                        include: paths.appSrc,
                        loader: require.resolve('babel-loader'),
                        options: {
                            customize: require.resolve(
                                'babel-preset-react-app/webpack-overrides'
                            ),
                            presets: [
                                [
                                    require.resolve('babel-preset-react-app'),
                                    {
                                        runtime: hasJsxRuntime ? 'automatic' : 'classic',
                                    },
                                ],
                            ],

                            plugins: [
                                [
                                    require.resolve('babel-plugin-named-asset-import'),
                                    {
                                        loaderMap: {
                                            svg: {
                                                ReactComponent: '@svgr/webpack?-svgo,+titleProp,+ref![path]',
                                            },
                                        },
                                    },
                                ],
                                isEnvDevelopment &&
                                shouldUseReactRefresh &&
                                require.resolve('react-refresh/babel'),
                            ].filter(Boolean),
                            // This is a feature of `babel-loader` for webpack (not Babel itself).
                            // It enables caching results in ./node_modules/.cache/babel-loader/
                            // directory for faster rebuilds.
                            cacheDirectory: true,
                            // See #6846 for context on why cacheCompression is disabled
                            cacheCompression: false,
                            compact: isEnvProduction,
                        },
                    },
                    // Process any JS outside of the app with Babel.
                    // Unlike the application JS, we only compile the standard ES features.
                    {
                        test: /\.(js|mjs)$/,
                        exclude: /@babel(?:\/|\\{1,2})runtime/,
                        loader: require.resolve('babel-loader'),
                        options: {
                            babelrc: false,
                            configFile: false,
                            compact: false,
                            presets: [
                                [
                                    require.resolve('babel-preset-react-app/dependencies'),
                                    {
                                        helpers: true
                                    },
                                ],
                            ],
                            cacheDirectory: true,
                            // See #6846 for context on why cacheCompression is disabled
                            cacheCompression: false,

                            // Babel sourcemaps are needed for debugging into node_modules
                            // code.  Without the options below, debuggers like VSCode
                            // show incorrect code and set breakpoints on the wrong lines.
                            sourceMaps: shouldUseSourceMap,
                            inputSourceMap: shouldUseSourceMap,
                        },
                    },
                    // "postcss" loader applies autoprefixer to our CSS.
                    // "css" loader resolves paths in CSS and adds assets as dependencies.
                    // "style" loader turns CSS into JS modules that inject <style> tags.
                    // In production, we use MiniCSSExtractPlugin to extract that CSS
                    // to a file, but in development "style" loader enables hot editing
                    // of CSS.
                    // By default we support CSS Modules with the extension .module.css
                    {
                        test: cssRegex,
                        exclude: cssModuleRegex,
                        use: getStyleLoaders({
                            importLoaders: 1,
                            sourceMap: isEnvProduction
                                ? shouldUseSourceMap
                                : isEnvDevelopment,
                        }),
                        // Don't consider CSS imports dead code even if the
                        // containing package claims to have no side effects.
                        // Remove this when webpack adds a warning or an error for this.
                        // See https://github.com/webpack/webpack/issues/6571
                        sideEffects: true,
                    },
                    // Adds support for CSS Modules (https://github.com/css-modules/css-modules)
                    // using the extension .module.css
                    {
                        test: cssModuleRegex,
                        use: getStyleLoaders({
                            importLoaders: 1,
                            sourceMap: isEnvProduction
                                ? shouldUseSourceMap
                                : isEnvDevelopment,
                            modules: {
                                getLocalIdent: getCSSModuleLocalIdent,
                            },
                        }),
                    },
                    // Opt-in support for SASS (using .scss or .sass extensions).
                    // By default we support SASS Modules with the
                    // extensions .module.scss or .module.sass
                    {
                        test: sassRegex,
                        exclude: sassModuleRegex,
                        use: getStyleLoaders(
                            {
                                importLoaders: 3,
                                sourceMap: isEnvProduction
                                    ? shouldUseSourceMap
                                    : isEnvDevelopment,
                            },
                            'sass-loader'
                        ),
                        // Don't consider CSS imports dead code even if the
                        // containing package claims to have no side effects.
                        // Remove this when webpack adds a warning or an error for this.
                        // See https://github.com/webpack/webpack/issues/6571
                        sideEffects: true,
                    },
                    // Adds support for CSS Modules, but using SASS
                    // using the extension .module.scss or .module.sass
                    {
                        test: sassModuleRegex,
                        use: getStyleLoaders(
                            {
                                importLoaders: 3,
                                sourceMap: isEnvProduction
                                    ? shouldUseSourceMap
                                    : isEnvDevelopment,
                                modules: {
                                    getLocalIdent: getCSSModuleLocalIdent,
                                },
                            },
                            'sass-loader'
                        ),
                    },
                    // "file" loader makes sure those assets get served by WebpackDevServer.
                    // When you `import` an asset, you get its (virtual) filename.
                    // In production, they would get copied to the `build` folder.
                    // This loader doesn't use a "test" so it will catch all modules
                    // that fall through the other loaders.
                    {
                        loader: require.resolve('file-loader'),
                        // Exclude `js` files to keep "css" loader working as it injects
                        // its runtime that would otherwise be processed through "file" loader.
                        // Also exclude `html` and `json` extensions so they get processed
                        // by webpacks internal loaders.
                        exclude: [/\.(js|mjs|jsx|ts|tsx)$/, /\.html$/, /\.json$/],
                        options: {
                            name: 'static/media/[name].[hash:8].[ext]',
                        },
                    },
                // ** STOP ** Are you adding a new loader?
                // Make sure to add the new loader(s) before the "file" loader.
                ],
            },
        ],
    },
    plugins: [
        // Generates an `index.html` file with the <script> injected.
        new HtmlWebpackPlugin(
            Object.assign(
                {},
                {
                    inject: true,
                    template: paths.appHtml,
                },
                isEnvProduction
                    ? {
                        minify: {
                            removeComments: true,
                            collapseWhitespace: true,
                            removeRedundantAttributes: true,
                            useShortDoctype: true,
                            removeEmptyAttributes: true,
                            removeStyleLinkTypeAttributes: true,
                            keepClosingSlash: true,
                            minifyJS: true,
                            minifyCSS: true,
                            minifyURLs: true,
                        },
                    }
                    : undefined
            )
        ),
        // Inlines the webpack runtime script. This script is too small to warrant
        // a network request.
        // https://github.com/facebook/create-react-app/issues/5358
        isEnvProduction &&
        shouldInlineRuntimeChunk &&
        new InlineChunkHtmlPlugin(HtmlWebpackPlugin, [/runtime-.+[.]js/]),
        // Makes some environment variables available in index.html.
        // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
        // <link rel="icon" href="%PUBLIC_URL%/favicon.ico">
        // It will be an empty string unless you specify "homepage"
        // in `package.json`, in which case it will be the pathname of that URL.
        new InterpolateHtmlPlugin(HtmlWebpackPlugin, env.raw),
        // This gives some necessary context to module not found errors, such as
        // the requesting resource.
        new ModuleNotFoundPlugin(paths.appPath),
        // Makes some environment variables available to the JS code, for example:
        // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
        // It is absolutely essential that NODE_ENV is set to production
        // during a production build.
        // Otherwise React will be compiled in the very slow development mode.
        new webpack.DefinePlugin(env.stringified),
        // This is necessary to emit hot updates (CSS and Fast Refresh):
        isEnvDevelopment && new webpack.HotModuleReplacementPlugin(),
        // Experimental hot reloading for React .
        // https://github.com/facebook/react/tree/master/packages/react-refresh
        isEnvDevelopment &&
        shouldUseReactRefresh &&
        new ReactRefreshWebpackPlugin({
            overlay: {
                entry: webpackDevClientEntry,
                // The expected exports are slightly different from what the overlay exports,
                // so an interop is included here to enable feedback on module-level errors.
                module: reactRefreshOverlayEntry,
                // Since we ship a custom dev client and overlay integration,
                // the bundled socket handling logic can be eliminated.
                sockIntegration: false,
            },
        }),
        // Watcher doesn't work well if you mistype casing in a path so we use
        // a plugin that prints an error when you attempt to do this.
        // See https://github.com/facebook/create-react-app/issues/240
        isEnvDevelopment && new CaseSensitivePathsPlugin(),
        // If you require a missing module and then `npm install` it, you still have
        // to restart the development server for webpack to discover it. This plugin
        // makes the discovery automatic so you don't have to restart.
        // See https://github.com/facebook/create-react-app/issues/186
        isEnvDevelopment &&
        new WatchMissingNodeModulesPlugin(paths.appNodeModules),
        isEnvProduction &&
        new MiniCssExtractPlugin({
            // Options similar to the same options in webpackOptions.output
            // both options are optional
            filename: 'static/css/[name].[contenthash:8].css',
            chunkFilename: 'static/css/[name].[contenthash:8].chunk.css',
        }),
        // Generate an asset manifest file with the following content:
        // - "files" key: Mapping of all asset filenames to their corresponding
        //   output file so that tools can pick it up without having to parse
        //   `index.html`
        // - "entrypoints" key: Array of files which are included in `index.html`,
        //   can be used to reconstruct the HTML if necessary
        new ManifestPlugin({
            fileName: 'asset-manifest.json',
            publicPath: paths.publicUrlOrPath,
            generate: (seed, files, entrypoints) => {
                const manifestFiles = files.reduce((manifest, file) => {
                    manifest[file.name] = file.path;
                    return manifest;
                }, seed);
                const entrypointFiles = entrypoints.main.filter(
                    fileName => !fileName.endsWith('.map')
                );

                return {
                    files: manifestFiles,
                    entrypoints: entrypointFiles,
                };
            },
        }),
        // Moment.js is an extremely popular library that bundles large locale files
        // by default due to how webpack interprets its code. This is a practical
        // solution that requires the user to opt into importing specific locales.
        // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
        // You can remove this if you don't use Moment.js:
        new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
        // Generate a service worker script that will precache, and keep up to date,
        // the HTML & assets that are part of the webpack build.
        isEnvProduction &&
        fs.existsSync(swSrc) &&
        new WorkboxWebpackPlugin.InjectManifest({
            swSrc,
            dontCacheBustURLsMatching: /\.[0-9a-f]{8}\./,
            exclude: [/\.map$/, /asset-manifest\.json$/, /LICENSE/],
            // Bump up the default maximum size (2mb) that's precached,
            // to make lazy-loading failure scenarios less likely.
            // See https://github.com/cra-template/pwa/issues/13#issuecomment-722667270
            maximumFileSizeToCacheInBytes: 5 * 1024 * 1024,
        }),
        // TypeScript type checking
        useTypeScript &&
        new ForkTsCheckerWebpackPlugin({
            typescript: resolve.sync('typescript', {
                basedir: paths.appNodeModules,
            }),
            async: isEnvDevelopment,
            checkSyntacticErrors: true,
            resolveModuleNameModule: process.versions.pnp
                ? `${__dirname}/pnpTs.js`
                : undefined,
            resolveTypeReferenceDirectiveModule: process.versions.pnp
                ? `${__dirname}/pnpTs.js`
                : undefined,
            tsconfig: paths.appTsConfig,
            reportFiles: [
                // This one is specifically to match during CI tests,
                // as micromatch doesn't match
                // '../cra-template-typescript/template/src/App.tsx'
                // otherwise.
                '../**/src/**/*.{ts,tsx}',
                '**/src/**/*.{ts,tsx}',
                '!**/src/**/__tests__/**',
                '!**/src/**/?(*.)(spec|test).*',
                '!**/src/setupProxy.*',
                '!**/src/setupTests.*',
            ],
            silent: true,
            // The formatter is invoked directly in WebpackDevServerUtils during development
            formatter: isEnvProduction ? typescriptFormatter : undefined,
        }),
        !disableESLintPlugin &&
        new ESLintPlugin({
            // Plugin options
            extensions: ['js', 'mjs', 'jsx', 'ts', 'tsx'],
            formatter: require.resolve('react-dev-utils/eslintFormatter'),
            eslintPath: require.resolve('eslint'),
            failOnError: !(isEnvDevelopment && emitErrorsAsWarnings),
            context: paths.appSrc,
            cache: true,
            cacheLocation: path.resolve(
                paths.appNodeModules,
                '.cache/.eslintcache'
            ),
            // ESLint class options
            cwd: paths.appPath,
            resolvePluginsRelativeTo: __dirname,
            baseConfig: {
                extends: [require.resolve('eslint-config-react-app/base')],
                rules: {
                    ...(!hasJsxRuntime && {
                                'react/react-in-jsx-scope': 'error',
                    }),
                },
            },
        }),
    ].filter(Boolean),
    // Some libraries import Node modules but don't use them in the browser.
    // Tell webpack to provide empty mocks for them so importing them works.
    node: {
        module: 'empty',
        dgram: 'empty',
        dns: 'mock',
        fs: 'empty',
        http2: 'empty',
        net: 'empty',
        tls: 'empty',
        child_process: 'empty',
    },
    // Turn off performance processing because we utilize
    // our own hints via the FileSizeReporter
    performance: false,
};
};
